Pricing
One license. The full signal chain.
No subscription, no tiers to pick between — a single one-time purchase unlocks everything.
Atout APO
$29.99 one-time payment
Every feature, unlocked. No subscription.
- Up to 8-band parametric EQ with real-time spectrum overlay
- Dynamic EQ — dedicated Sub & Air bands
- Compressor with Threshold/Ratio/Attack/Release
- Master volume with Global Bypass
- Save & load presets
- System-wide processing on your output device
- No account required
Check your audio setup first: Atout APO currently supports Realtek (onboard) and USB Audio Class output devices only. Bluetooth headphones/speakers and professional audio interfaces are not yet supported — see system requirements before you buy.
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Windows 10 / 11 · Instant activation after purchase
Try it free for 7 days in the app, then buy if you want to keep processing. Refunds are only for product defects within 14 days of payment — see our Refund Policy.
How activation works: Download the app and start a 7-day free trial on first launch (internet required). A purchased license is processed by Lemon Squeezy, our Merchant of Record, then activated in-app with a license key bound to your device (HWID). Digital content is delivered immediately; checkout confirms you consent to immediate performance. See the Terms of Service and Refund Policy before purchasing.
Your card statement: Because Lemon Squeezy is the merchant of record, the charge on your card or bank statement will appear under "Lemon Squeezy" (or a similar Lemon Squeezy entity name) rather than "AtoutAudio."
Your card statement: Because Lemon Squeezy is the merchant of record, the charge on your card or bank statement will appear under "Lemon Squeezy" (or a similar Lemon Squeezy entity name) rather than "AtoutAudio."
Full comparison
What's included
| Feature | Atout APO |
|---|---|
| System-wide real-time processing (APO) | Included |
| EQ bands | Up to 8 bands, with real-time spectrum overlay |
| Dynamic EQ | Dedicated Sub & Air bands |
| Compressor | Threshold / Ratio / Attack / Release |
| Master / Global Bypass | Output level and full-chain bypass |
| Stereo Field | Live L–R imaging view |
| Presets | Save & load |
| Account / login required | No |
| License type | One-time, HWID-bound |
| Free trial | 7 days per PC (internet required to start) |
FAQ
Pricing questions
No. Atout APO is a one-time purchase that unlocks the full feature set on your license, not a recurring subscription.
One license key is active on one (1) device at a time, bound to that device's hardware (HWID) rather than a user account. Switching to a new computer? Use the built-in Reset Device feature to deactivate the old device and activate the new one — this can be done once every 30 days. See the Terms of Service for full details.
Payments are handled by Lemon Squeezy, acting as our Merchant of Record. They manage checkout, taxes, and receipts on our behalf; AtoutAudio never stores your card details. Your card statement will show a Lemon Squeezy entity name rather than "AtoutAudio."
Refunds are only available within 14 days of payment for a product defect or when the Software cannot function on a supported system. Change of mind is not eligible because a 7-day free trial is provided. See our Refund Policy.